Experimental Analysis of Plasma Spray Technique with Zerconium Oxide Mixture on SS304 Material as Thermal Barrier Coating

  • R. Sudarshan, Sriram Venkatesh, K. Balasubramanian


Porosity is vital in most engineering applications in plasma-spray coatings. Porosity has its strengths and demerits based on coating functionality and immediate working conditions. A thorough analysis of pore as is carried out in this work on plasma sprayed coatings. The formation and growth of porosity on plasma sprayed coatings is controlled by defined parameters of spray. Optimized parameters for set spraying were employed to produce the desired coatings with minimal defects. Problems such as porosity are still present with advanced set spray parameters. Here, we are discussing other ability to measure porosity in plasma-spraying coatings with emphasis on atmospheric plasma sprays (mixed with titanium-oxide and carbide) of zirconium oxide. Microstructures with XRD as a part of non- destructive testing methods had been used to check the structural values with thermal impact. A L16 orthogonal array used for optimise the parameters with Taguchi optimal method by segregating parameters for better optimal results.